Advantage-30 Synthetic Roof Underlayment

View Brochure | Learn More

WaterBlock Advantage-30 is designed and manufactured to provide a superior roofing underlayment compared to both asphalt felt products and other synthetic underlayments.

Installation Guides

The WaterBlock Installation Guides will guide you step by step how to install your Window & Door flashing.

  1. General Installation Guide
  2. Create Custom Installation
  3. Recessed Install Guide

adobe reader 

Custom Installation Guide

Always refer to the window or door manufacturers' installation guidelines for specific directions.
The WaterBlock Custom Installation Guide will ask a series of questions regarding options for your installation. Every step needs to be answered before printing your custom guide. Answers can be selected by clicking the drop down arrow next to the beginning of each question. The custom guide will load in a new window and a PDF viewer is required.

Launch the Custom Installation guide